临界阻尼比法在火箭POGO振动稳定性分析中的探讨

来源 :第七届全国动力学与控制青年学者研讨会 | 被引量 : 0次 | 上传用户:wangmeiqing
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Pogo振动是液体火箭在飞行期间由于推进系统与结构系统相互作用而产生的一种闭环纵向自激振动.典型的Pogo现象表现为整箭突然自发产生轴向周期振动,振动逐渐增至某一最大值后,又逐渐减小,直至振动消失.POGO振动不仅会严重影响火箭的运载能力与控制性能,而且会引起宇航员的生理不适,甚至导致发射任务的失败.
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